package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.annotation.AutoFill;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.enumeration.OperationType;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import lombok.Builder;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
@Slf4j
@Service
@Builder
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());


        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 添加员工
     * @param employeeDTO
     */


    @Override
    public void save( @ApiParam (value = "员工信息", required = true) EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        //属性拷贝,拷贝的前提是属性名一致
        BeanUtils.copyProperties(employeeDTO, employee);
        //设置状态可用,默认为1,这里用长量表示可以避免硬编码
        employee.setStatus(StatusConstant.ENABLE);
        //设置密码,默认123456,要先进行加密,该方法参数是字节数组,所以要先将字符串转换为字节数组,密码也使用常量
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        //设置当前时间,修改时间
        //设置修改人
        //TODO
        long id = Thread.currentThread().getId();
        log.info("当前线程id为:{}",id);
        employeeMapper.insert(employee);
        Long currentId = BaseContext.getCurrentId();
        log.info("当前员工id为:{}",currentId);

    }

    /**
     * 员工信息分页查询
     * @param pageQueryDTO
     * @return
     */
    @Override
    public PageResult page(EmployeePageQueryDTO pageQueryDTO) {
        PageHelper.startPage(pageQueryDTO.getPage(),pageQueryDTO.getPageSize());
        Page<Employee> page=employeeMapper.pageQuery(pageQueryDTO);
        return new PageResult(page.getTotal(),page.getResult());
    }

    @Override
    public void enableOrDisable(Integer status, Long id) {
        Employee emp = Employee.builder().id(id).status(status).updateTime(LocalDateTime.now()).updateUser(BaseContext.getCurrentId()).build();
        log.info("员工信息{}",emp);
        employeeMapper.update(emp);
    }

    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);

        return employee;
    }


    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO, employee);
        employeeMapper.update(employee);
    }


}
